linux-kernel - Re: [PATCH] ieee802154: verify packet size before trying to allocate it

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Message-ID: <1339402702.4999.15.camel@lappy>
Date:	Mon, 11 Jun 2012 10:18:22 +0200
From:	Sasha Levin <levinsasha928@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	dbaryshkov@...il.com, slapin@...fans.org,
	linux-zigbee-devel@...ts.sourceforge.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ieee802154: verify packet size before trying to
 allocate it

On Sun, 2012-06-10 at 20:04 -0700, David Miller wrote:
> From: Sasha Levin <levinsasha928@...il.com>
> Date: Sun, 10 Jun 2012 13:10:19 +0200
> 
> > Currently when sending data over datagram, the send function will attempt to
> > allocate any size passed on from the userspace.
> > 
> > We should make sure that this size is checked and limited. The maximum size
> > of an IP packet seemed like the safest limit here.
> > 
> > Signed-off-by: Sasha Levin <levinsasha928@...il.com>
> 
> Why not limit to the device MTU?  That's exactly what I suggested
> to you.

That's what I ended up doing in the reply to this mail.

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